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67115066 = 253633161
BaseRepresentation
bin1000000000000…
…01100000111010
311200021210120012
410000001200322
5114140140231
610354301522
71443316514
oct400014072
9150253505
1067115066
11349805a7
121a5878a2
1310b9b675
148cb0bb4
155d5ae2b
hex400183a

67115066 has 8 divisors (see below), whose sum is σ = 102572244. Its totient is φ = 32924320.

The previous prime is 67115063. The next prime is 67115071. The reversal of 67115066 is 66051176.

It can be written as a sum of positive squares in 2 ways, for example, as 65141041 + 1974025 = 8071^2 + 1405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (67115063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316475 + ... + 316686.

Almost surely, 267115066 is an apocalyptic number.

67115066 is a deficient number, since it is larger than the sum of its proper divisors (35457178).

67115066 is a wasteful number, since it uses less digits than its factorization.

67115066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633216.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 67115066 is about 8192.3785312936. The cubic root of 67115066 is about 406.3871875611.

The spelling of 67115066 in words is "sixty-seven million, one hundred fifteen thousand, sixty-six".

Divisors: 1 2 53 106 633161 1266322 33557533 67115066